On March 27, KIHASA held a retirement ceremony for Dr. Ko, Gyeong-hwan, Senior Research Fellow of the Center for Information and Statistics Research, Department of Social Security Finance and Data Research. The ceremony was attended by President Lee Tae-soo, senior managers, and other members in person and online. Dr. Ko received the Plaque of Merit for his contribution and the Letter of Appointment as Honorary Research Fellow, and shared his thoughs.